<template>
  <div>
    <!-- 顶部面包屑 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item :to="{ path: '/goods' }">商品列表</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <!-- 顶部提示区域 -->
      <el-alert title="添加商品信息" type="info" center show-icon :closable="false"></el-alert>
      <!-- 步骤条 -->
      <el-steps :space="200" :active="+activeIndex" finish-status="success" align-center>
        <el-step title="基本信息" icon="el-icon-warning-outline"></el-step>
        <el-step title="商品参数" icon="el-icon-setting"></el-step>
        <el-step title="商品属性" icon="el-icon-tickets"></el-step>
        <el-step title="商品图片" icon="el-icon-picture"></el-step>
        <el-step title="商品内容" icon="el-icon-document"></el-step>
        <el-step title="完成" icon="el-icon-check"></el-step>
      </el-steps>
      <!-- Tab栏 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="100px" label-position="top">
        <el-tabs :tab-position="'left'" v-model="activeIndex">
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input type="number" v-model="addForm.goods_price"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input type="number" v-model="addForm.goods_weight"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input type="number" v-model="addForm.goods_number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <!-- 级联选择器 -->
              <el-cascader
                :options="cateList"
                v-model="addForm.goods_cat"
                :props="cateProps"
                @change="handleChange"
              >
              </el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">配置管理</el-tab-pane>
          <el-tab-pane label="商品属性" name="2">角色管理</el-tab-pane>
          <el-tab-pane label="商品图片" name="3">定时任务补偿</el-tab-pane>
          <el-tab-pane label="商品内容" name="4">角色管理</el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>
  </div>
</template>

<script>
export default {
  data () {
    return {
      activeIndex: '0',
      cateList: [],
      cateProps: {
        expandTrigger: 'hover',
        label: 'cat_name',
        value: 'cat_id',
        children: 'children'
      },
      addForm: {
        goods_name: '',
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: []
      },
      addFormRules: {
        goods_name: [{ required: true, message: '请选择商品名称', trigger: 'blur' }],
        goods_price: [{ required: true, message: '请选择商品价格', trigger: 'blur' }],
        goods_weight: [{ required: true, message: '请选择商品重量', trigger: 'blur' }],
        goods_number: [{ required: true, message: '请选择商品数量', trigger: 'blur' }],
        goods_cat: [{ required: true, message: '请选择商品分类', trigger: 'blur' }]
      }
    }
  },
  created () {
    this.getCateList()
  },
  methods: {
    async getCateList () {
      const { data: res } = await this.$http.getCateList()
      if (res.meta.status !== 200) {
        return this.message.error('获取失败')
      }
      this.cateList = res.data
      console.log(this.cateList)
    },
    // 级联选择器选中变化触发
    handleChange () {
      console.log(this.cateList)
      console.log(this.addForm.goods_cat)
    }
  }
}
</script>

<style lang="scss" scoped>
  .el-card {
    margin-top: 15px;
    .el-alert {margin: 15px 0;}
    .el-tabs {
      margin-top: 15px;
      .el-tabs__item {
        font-size: 12px;
      }
    }
  }
</style>
